1. If something has been dissolved in water, how could it be separated from the water again?
A. by decanting it
B. by dissolving it in milk
C. by evaporating it
D. by filtering it with cloth
2. If Jo wants to get iron fillings out of the sand, what practical application could she use to separate these two solids?
A. magnetism
B. decantation
C. evaporation
D. filtration
3. The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as _________.
A. decanting
B. chromatography
C. sterilization
D. evaporation